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java.lang.Objectorg.eclipse.persistence.jpa.jpql.model.query.AbstractStateObject
org.eclipse.persistence.jpa.jpql.model.query.AbstractModifyClauseStateObject
org.eclipse.persistence.jpa.jpql.model.query.DeleteClauseStateObject
public class DeleteClauseStateObject
This is the DELETE clause of the DELETE statement.
A DELETE statement provides bulk operations over sets of entities of a single
entity class (together with its subclasses, if any). Only one entity abstract schema type may be
specified in the UPDATE clause.
delete_clause ::= DELETE FROM abstract_schema_name [[AS] identification_variable]
DeleteClause| Constructor Summary | |
|---|---|
DeleteClauseStateObject(DeleteStatementStateObject parent)
Creates a new DeleteClauseStateObject. |
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| Method Summary | |
|---|---|
void |
accept(StateObjectVisitor visitor)
Visits this StateObject by the given visitor. |
DeleteClause |
getExpression()
Returns the actual parsed object if this StateObject representation of the JPQL query
was created by parsing an existing JPQL query. |
java.lang.String |
getIdentifier()
Returns the JPQL identifier of this clause. |
DeleteStatementStateObject |
getParent()
Returns the parent of this StateObject. |
void |
setExpression(DeleteClause expression)
Keeps a reference of the parsed object object, which should only be
done when this object is instantiated during the conversion of a parsed JPQL query into
StateObjects. |
| Methods inherited from class org.eclipse.persistence.jpa.jpql.model.query.AbstractModifyClauseStateObject |
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addChildren, declarations, findManagedType, getAbstractSchemaName, getAbstractSchemaNameStateObject, getDeclaration, getEntity, getIdentificationVariable, getIdentificationVariableStateObject, getManagedType, getRangeVariableDeclaration, hasIdentificationVariable, initialize, isEquivalent, setDeclaration, setDeclaration, setDeclaration, setDeclaration, setEntity, setEntityName, setIdentificationVariable, toTextInternal |
| Methods inherited from class org.eclipse.persistence.jpa.jpql.model.query.AbstractStateObject |
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acceptUnknownVisitor, acceptUnknownVisitor, addProblems, addPropertyChangeListener, areEquivalent, buildProblem, buildProblem, buildStateObject, buildStateObjects, checkParent, children, decorate, equals, findIdentificationVariable, firePropertyChanged, getChangeSupport, getDecorator, getGrammar, getManagedTypeProvider, getQueryBuilder, getRoot, getType, getType, getTypeHelper, getTypeRepository, hashCode, isDecorated, parent, parent, parent, removePropertyChangeListener, setExpression, setParent, toString, toString, toStringInternal, toStringItems, toText |
| Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
| Methods inherited from interface org.eclipse.persistence.jpa.jpql.model.query.StateObject |
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addPropertyChangeListener, children, decorate, findIdentificationVariable, getDecorator, getGrammar, getManagedTypeProvider, getQueryBuilder, getRoot, isDecorated, removePropertyChangeListener, setParent, toString, toText |
| Constructor Detail |
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public DeleteClauseStateObject(DeleteStatementStateObject parent)
DeleteClauseStateObject.
parent - The parent of this state object, which cannot be null
java.lang.NullPointerException - The given parent cannot be null| Method Detail |
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public void accept(StateObjectVisitor visitor)
StateObject by the given visitor.
visitor - The visitor to visit this objectpublic DeleteClause getExpression()
StateObject representation of the JPQL query
was created by parsing an existing JPQL query.
getExpression in interface StateObjectgetExpression in class AbstractStateObjectStateObject
or null when the JPQL query is manually created (i.e. not from a string)public java.lang.String getIdentifier()
getIdentifier in class AbstractModifyClauseStateObjectpublic DeleteStatementStateObject getParent()
StateObject.
getParent in interface StateObjectgetParent in class AbstractModifyClauseStateObjectStateObject, which is null only when
this is the root of the hierarchypublic void setExpression(DeleteClause expression)
parsed object object, which should only be
done when this object is instantiated during the conversion of a parsed JPQL query into
StateObjects.
expression - The parsed object representing a DELETE
clause
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